Author Topic: Fuel Pump Research (Read 8762 times)

x66 714 · « **on:** August 29, 2022, 10:07:28 PM »

I'm seeing more & more discussion about fuel pumps & realize we need to know more. I've been researching fuel pumps through as many avenues as I can think of. I've created a list that Kurt will share. What I need is more input from anybody that might have original pumps. The part number, date code & known exact application would be wonderful. Information from just the flange only will always help. The picture is Guy Youngdell's original pump from his 12k miles 375hp April 1969 Built. Thank you, Joe

KurtS · « **Reply #1 on:** August 30, 2022, 05:14:35 AM »

x66 714 · « **Reply #2 on:** August 30, 2022, 11:47:55 AM »

Thank you for adding the chart....Joe

jdv69z · « **Reply #3 on:** August 30, 2022, 01:05:33 PM »

HH40669 pump from my 69 Z/28 10B build Oct 68

Danzo · « **Reply #4 on:** August 30, 2022, 11:24:05 PM »

DI40669 April 1969 05A Z28

mgreenz · « **Reply #5 on:** September 02, 2022, 01:32:33 AM »

Glad to see this topic being covered. Question about the list that Kurt posted for Joe. Is the Part Number an AC number? I ask because I have a NOS AI40524 pump that shows the GM p/n 6416886 on the box. With a partswiki search I found that the 40524 pump is listed in the Nov 68 Parts Catalogue for 1969 307 and 327 as well the 67/68 small block 4V. A photo of the page is attached but is likely hard to read. Something else thats probably hard to see in the first photo is that the AC logo is upside down. Hoping that’s just an anomaly.

x66 714 · « **Reply #6 on:** September 02, 2022, 01:50:06 AM »

Thanks Terry. That was one of the numbers I got from the assm manual & never found it in the parts books. It's interesting that GM gave it a different sales part number but has 1/69 date code. Thanks for sharing....Joe

mgreenz · « **Reply #7 on:** September 02, 2022, 03:08:07 PM »

Your welcome Joe, happy to contribute where I can.
Here’s a service dated BA40524 AC fuel pump I picked up a while ago. Probably not of much value to this research topic but it does indicate availability into the late 80’s if I’m reading it correctly. (Feb 1987). It does have the 2 vent holes and the 3/8” inlet.

x66 714 · « **Reply #8 on:** September 02, 2022, 04:09:51 PM »

Thanks Terry. I read that as much earlier but I could be wrong. I know in 1971 they started julian date & a single letter for the year. The data is helpful as as it says these pumps existed even if not during the years of 1st gen Camaros....Joe

camaronut · « **Reply #9 on:** September 06, 2022, 10:57:32 AM »

Do you think its a good idea to use a NOS fuel pump that's over 50 yrs old? I'm thinking not.......
The rubber bladder has to be dry-rotted by now......I would think.

mgreenz · « **Reply #10 on:** September 06, 2022, 01:13:28 PM »

I'm thinking that your correct. It's occurred to me that if I was to use a NOS fuel pump it should be rebuilt. My understanding is that Fred Ballard is the go to guy for crimp style fuel pumps.

Here's an opinion that I saved from an ebay listing:

GOATHILL CLASSICS
All ORIGINAL, and CORRECT AC Fuel Pumps have two 1/8” (.125) vent/weep holes
in the AC housing located above the Diaphram so that WHEN the diaphram FAILS,
the Gasoline will be vented OUTSIDE of the Fuel Pump. Check ALL of the Asian,
Offshore, PHONEY Domestic Fuel Pumps for these two Vent/Weep holes!!
Without these two Vent/Weep holes the the Gasoline WILL contaminate the
Crankcase, resulting is CATASTROPHIC Main and Rod Bearing FAILURE !!

x66 714 · « **Reply #11 on:** September 06, 2022, 01:21:51 PM »

Goathill no longer has the parts to rebuild them & at last conversation he doesn't know where, when or if he will have the parts. I orders a 40524 pump from him in Feb 2021. Still don't have it. He did cash my check in March of 2021
Fred is a little back logged also as he is taking care of family which always comes 1st. Fred has 2 of my 40524s...Joe

mgreenz · « **Reply #12 on:** September 06, 2022, 02:14:22 PM »

Thanks Joe. Good to know. I think I'd be more comfortable going with Fred.

camaronut · « **Reply #13 on:** September 06, 2022, 03:58:51 PM »

I bought a fuel pump from The Parts Place a few years back that looked identical to the "correct" AC fuel pump. Had the casting spot on with the AC logo on it - just no 40669 stamping on it. Maybe they still have some left in stock.

rare396bronze · « **Reply #14 on:** September 07, 2022, 03:57:21 AM »

F1140524 68 06B 327/210

x66 714 · « **Reply #15 on:** September 07, 2022, 11:19:07 AM »

Quote from: rare396bronze on September 07, 2022, 03:57:21 AM

F1140524 68 06B 327/210

Can you double check that number please. Thank you, Joe

68camaroz28 · « **Reply #16 on:** September 07, 2022, 12:44:32 PM »

I have this info and pics post #1260: July67 produced NOS fuel pump looked like with the yellow zinc bowl. A couple years ago I purchased this fuel pump when Jere Stahl (RIP) was going out of business. I noted it was a correct number for our 68 Z/28 and wanted it for possible replacement if our re-built one goes bad. Even a good look at what the gasket looked like. The first "G" denotes the month (July) and the 2nd "G" denotes the year (67).
https://www.camaros.net/threads/time-for-another-68-z-28-to-be-restored.182584/page-63#post-3752106

x66 714 · « **Reply #17 on:** September 07, 2022, 01:52:02 PM »

He posted "F11" which doesn't fit in either date coding.....Joe

rare396bronze · « **Reply #18 on:** September 07, 2022, 08:16:51 PM »

Looked at again in daylight FH40524

x66 714 · « **Reply #19 on:** September 07, 2022, 08:20:57 PM »

Quote from: rare396bronze on September 07, 2022, 08:16:51 PM

Looked at again in daylight FH40524

Thank you for checking....Joe

x66 714 · « **Reply #20 on:** September 21, 2022, 01:34:12 PM »

This post has been looked at 684 times so far. Thank you to all those who have read this & provided data. We could use some more data still, especially on 40727 pumps. I don't have any positive proof that the 40727 existed for the 1969 model year 396/402 engines. Thank you, Joe

Mike S · « **Reply #21 on:** September 23, 2022, 01:50:01 AM »

Still original pump on the 396/325
Engine Prefix: T0214MZ
Pump stamping: AG40468

Mike

169INDY · « **Reply #22 on:** September 23, 2022, 02:08:31 AM »

1968 302 LA 12D

x66 714 · « **Reply #23 on:** October 16, 2022, 09:39:56 PM »

Spooky on Yenko just posted a GH40669. Add it to the list of knowns....Joe

169INDY · « **Reply #24 on:** October 28, 2022, 03:07:44 AM »

Later Service unit BBC

x66 714 · « **Reply #25 on:** October 28, 2022, 11:49:43 AM »

Thank you Jim...Joe

Jonesy · « **Reply #26 on:** November 05, 2022, 01:29:38 AM »

Quote from: x66 714 on September 06, 2022, 01:21:51 PM

Goathill no longer has the parts to rebuild them & at last conversation he doesn't know where, when or if he will have the parts. I orders a 40524 pump from him in Feb 2021. Still don't have it. He did cash my check in March of 2021
Fred is a little back logged also as he is taking care of family which always comes 1st. Fred has 2 of my 40524s...Joe

GoatHill is a real LOSER. He took me and many others. He only takes checks and cashes them and doesnt send you anything because he doesnt have it!! Then gives you a run around and some BS excuses. Dont deal with this guy! BAD NEWS!!

David K · « **Reply #27 on:** March 12, 2023, 02:35:40 AM »

Has there been a definitive fuel pump decoding chart? I read the posts but nothing seemed to be conclusive. My pump has failed and I’ve found several NOS but would like to know when they were built first out of curiosity. Obviously the numbers I know, but the prefixes is what I am trying to figure out.

x66 714 · « **Reply #28 on:** March 12, 2023, 01:20:31 PM »

Assm line pumps & very early NOS pumps will have a 2 letter code. The 1st letter is the month A-L indicating A=January etc. The 2nd letter indicates the year F=1966, G=1967, H=1968, I=1969, & J=1970. In 1971 pumps had Julian dates 1-365 followed by a letter. K=1971, L-1972, etc. A 123k40727 would be May 3rd 1971....Joe

David K · « **Reply #29 on:** March 12, 2023, 04:57:46 PM »

X66 -thanks. I have a few NOS I’m looking at because my diaphragm has failed. Is the one photo just a doubled stamp C? Then this would be a March a 1969?
251S would be day 251 of 19??
051—1973

x66 714 · « **Reply #30 on:** March 12, 2023, 05:11:07 PM »

the "S" is 1979....Joe

David K · « **Reply #31 on:** March 12, 2023, 05:23:53 PM »

Double stamped?

x66 714 · « **Reply #32 on:** March 12, 2023, 05:53:18 PM »

Yes. March 1969. What is 40616? I don't have that for a 1st gen Camaro....Joe

David K · « **Reply #33 on:** March 12, 2023, 06:02:43 PM »

Thanks Joe. Inline 6.

x66 714 · « **Reply #34 on:** April 11, 2023, 05:16:12 PM »

Finally found another 40727. It has a "KI" date which is Nov 1969. Most likely not correct for a Camaro. Owner said it was his original for his 1/70 LS6 Chevelle. It's another known date....Joe

David K · « **Reply #35 on:** April 13, 2023, 03:10:33 AM »

Sometimes they just don't last....20 years.

1cuda · « **Reply #36 on:** June 16, 2023, 01:43:59 AM »

Original fuel pump from an April 4th assembled Tonawanda 327

x66 714 · « **Reply #37 on:** June 16, 2023, 03:20:58 AM »

Thank you 1cuda. So it's T0404? That's a date I didn't have. Joe

1cuda · « **Reply #38 on:** June 16, 2023, 08:33:58 AM »

No problem Joe...a very original engine still has it's original distributor cap and rotor...fan belt... heater hoses etc...a wealth of information.
All the best Frank

David K · « **Reply #39 on:** June 17, 2023, 04:35:09 PM »

Cuda, what’s with the funky stamped numbers?

bcmiller · « **Reply #40 on:** June 17, 2023, 04:59:05 PM »

Quote from: David K on June 17, 2023, 04:35:09 PM

Cuda, what’s with the funky stamped numbers?

It is not a US installed engine, it is from a 1968 Australian Holden.

See this thread.
http://www.camaros.org/forum/index.php?topic=20741.msg188739#msg188739

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Author Topic: Fuel Pump Research (Read 8762 times)